钢架混凝土转换梁性能分析

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1、西南交通大学硕士学位论文钢架混凝土转换梁性能分析姓名：杜雪芳申请学位级别：硕士专业：结构工程指导教师：毛蓉萍20090201西南交通大学硕士研究生学位论文第1I页AbstractSteelreinforeedconcreteconstructioniswidelyusedbytransferstructureinPracticalProjectsbecauseofitsvirtuessuchashigherbearingcapacity，higherstif拖eSSandexcellentseismicbehavior．ButtheformofsteelisSOsimpl

2、ex．whichmainlyputsteelintheordinaryreinforeedconcretebeamswiththeshapeofIorH，thatitcarl’twellmeettheneedsofthepracticalprojectswhosestucturesaremoreandmorecomplicated．However，itaffectsthereinforcingbarstolinkupatknotareas，andcantsuittheideaof‘‘strongknot’’．Especially，thehighbuildingwithtr

3、ansferstructurebelongstoirregularverticalstructure，SOitisverynecessarytooptimizethesteelforms．Basedontwoactualprojectsofshearwallstructure．onewithsteelreinforeedconcretr(SRC)traferbeamandtheotherwithsteeltrussreinforeedconcretetransferbeam，studywascarriedoutfirstlyaccordingtoFiniteelement

4、theory．Throughanalyzingandcomparingthebehaviorsofthesetwodifferenttraferfloorunderverticalconcentrated10ad．thearticlemainlystudyhowtheshapeofsteelstrussaffectstheloadCapacityofbeamsandtheforcetransfermechanism．featuresofstressesofreinforcingbarsandsteeltruss．Then．theauthouadoptANSYStOcond

5、uctthestructurewithsteeltrussreinforcedconcretetransferbeambymodalanalysis，responsespectrumanalysisandtimehistoryanalysis，studyingondynamicalcharacteristicsandtheresponsecharacteristicsundertheconditionofhorizontal．Resultsshowthatsteelstrussreinforcedconcretetransferbeamscantransferstress

6、bythewayofthearc．Byarrangingthesteeltrusses，theshortestandmostdirectforcepathisachievedtotransferupperloads，andoptimizethecomplicatedstressconditionoftheordinarysteelreinforeedconcretetransferbeams．So，itcanremedytheweaknessofthelatterinhighbuildings．Built—insteelstrussisadvantageoustobett

7、ertheconnectofreinforcingbaratknotareaandperforcegoodductility．ThefailuremodeofsteeltrussreinfcIreedconcretetransferdeepbeamisimprovedsignificantly，whichhasgoodplasticity，andbrittlefailuremodeofnormalreinforeedconcretetransferbeam．especiallydeepflexuralmembers，isavo